摘要
在山东泰安、临沂等板栗产区新发生一种叶部病害,叶片感病后,产生褐色斑点,后期呈不规则大面积干枯,继而引起严重的早期落叶。通过对病原物的分离、纯化、病原菌形态、培养性状的观察及rDNA-ITS序列进行同源性比对分析,确定引起该病害的病原菌为一新种,将其定名为板栗拟茎点霉Phomopsis castaneae-mollissimae。新种的载孢体近球形,有2种分生孢子,甲型孢子多为椭圆形,少为披针形,具2个明显的油球,形态及大小异于板栗属植物上已知的拟茎点霉。文中对新种进行了拉丁文描述。模式标本保存于山东农业大学植物病理标本室(HSAUP)。
A new leaf disease was found on chestnut in Tai＇an and Linyi of Shandong Province.The infected leaves firstly produced small spots and then turned brown and finally fell off.Pathogenic separation,purification,morphological observation and rDNA-ITS sequence analysis of the pathogen indicated it was a new species,Phomopsis castaneae-mollissimae.Brief description of the species was provided.The holotype specimen is deposited in the herbarium of Shandong Agricultural University：Plant Pathology（HSAUP）.
出处
《菌物学报》
CAS
CSCD
北大核心
2010年第4期467-471,共5页
Mycosystema
关键词
板栗拟茎点霉
病原菌
分类
新种
Phomopsis castaneae-mollissimae
pathogen
taxonomy
new species
